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Period 11 Exercise Answers
E.1 Ionizing radiation
a)
b)
c)
d)
e)
can cause cancer.
can be used to diagnose cancer.
can be used to treat cancer.
Answers a) and c) are both true.
All of the above answers are true.
E.1 = e
E.2 Which of the following is NOT a source of
ionizing radiation?
a)
b)
c)
d)
e)
cosmic rays
some types of rocks
dental X-rays
potassium in the body
photographic film
E.2 = e
E.3 Which of
FALSE?
the
a) Radioactivity
nature.
following
occurs
statements
is
naturally
in
b) Radiation can cause biological damage.
c)
Distance from a radioactive source is
important in determining the dose of
radiation received.
d) The exposure to background radiation
from cosmic rays decreases with
increasing altitude.
e) The presence of radioactive substances
can be detected by using a cloud
chamber.
E.3 = d
Period 11 Answers
E.1 = e
E.2 = e
E.3 = d
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